1. 1) L. N. Gerasimenko, I. V. Kirichenko, L. N. Lozhkin and A. G. Morachevski: Izv. Akad. Nauk SSSR, Otd. Obshch i Tekhn. Khim., (1965), 236.
2. 2) C. Hsi-Hsiung, C. Peng-Nien and C.-C. Mo: Acta Met. Sinica, 9 (1966), 113.
3. 3) V. N. Danilin and S. P. Yatsenko: Tr. Inst. Khim. Akad. Nauk Ural. Final., (1970), No. 20. 142.
4. 4) C. Bergman, M. Laffitte and Y. Muggianu: High Temp.-High Press, 6 (1974), 53.
5. 5) T. J. Anderson, T. L. Aselage and L. F. Donaghey: J. Chem. Thermodyn., 15 (1983), 927.